Hybrid EV Battery System Thermal Management Designing Lab-Scale Battery Performance Testing Systems

Abstract

Thermal management plays a crucial role for HEV and EV battery systems to maintain their performance, durability and safety of the battery system. As lithium-ion batteries are widely incorporated in these systems, the thermal management of heat produced during their operation has been challenging. This paper discusses the aspects of lab-scale battery performance testing systems with specific attention paid to the incorporation of advanced cooling systems. It compares liquid cooling with phase change materials (PCMs) with passive and active hybrids with their strengths and weaknesses in heat dissipation and impact on battery degradation and cost. Other parameters of performance that are assessed in the course of the study include temperature profile, thermal conduction and reaction time of the system. Last of all, the paper lays out the prospects of battery thermal management research, the use of new types of composite materials, effectiveness of new designs on different levels of battery scaling, as well as smart control and monitoring of real-time thermal activity.